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[MBN001063A], Technical Note, Charles Batchelor, June 18th, 1877

Title: [MBN001063A], Technical Note, Charles Batchelor, June 18th, 1877
Editor's Notes: hotel annunciator
Author: Batchelor, Charles
Date: 1877-06-18
Type: Technical Note
Subject: Miscellaneous technologies; Microphone and other acoustic devices
Folder ID: MBN001-F
Microfilm ID: 90:649
Document ID: MBN001063A
URL: https://edisondigital.rutgers.edu/document/MBN001063A
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 90